Ok. I am having some trouble getting my 2X55W PC
square pen lamps to fire when wired to a Fulham Workhorse 7 ballast. Now, according to Fulham's website I am supposed to use this diagram for wiring the bulbs together:
However, I have done this and still cant get them to light. When I do turn the ballast on, the bulbs glow extremely dim almost like they arent getting the proper voltage to them. I tested the bulbs in known working fixture and they fired right up so I know the bulbs are ok. I am beginning to suspect a bad ballast but I wanted to see if anyone had any thoughts on this.
The endcaps I received where built for a PFO ballast since they had that crazy looking plug on the end of the cord. I cut the plug off to reveal 4 wires coming out of the endcap: blue, black, brown, and yellow/green.
On the ballast, there are 5 wires coming out: 4 reds and 1 yellow. According to the diagram, I am supposed to connect each pair of reds together to form one line. If I do this for both pair, then I come out with just two reds. Then it looks like each joined red pair now connects directly to the endcap of each bulb. However, I am not sure as to how many wires coming out of the endcap are supposed to connect to each red pair. I also don't know how many wires are supposed to connect to the yellow (common) wire coming out of the ballast.
Anyone have any experience wiring this ballast up?